fix(npm): vendor the current Dart sources instead of a v0.9.1 snapshot

lib/src/cli/serve.dart

@@ -1423,17 +1423,3 @@ Future<Map<String, dynamic>> _handleQrLoginWaitServe(
         'QR code may have expired. Call qr_login_start again for a fresh code.',
   };
 }
-
-/// Check if Chrome is already running on the specified port
-Future<bool> _checkForExistingChrome(int port) async {
-  try {
-    final uri = Uri.parse('http://127.0.0.1:$port/json');
-    final client = HttpClient();
-    final request = await client.getUrl(uri);
-    request.headers.set('Accept', 'application/json');
-    final response = await request.close();
-    return response.statusCode == 200;
-  } catch (e) {
-    return false;
-  }
-}

packaging/npm/dart/bin/server.dart

@@ -1,3 +1,3 @@
-import 'package:flutter_skill_npm/src/cli/server.dart';
+import 'package:flutter_skill/src/cli/server.dart';
 
 void main(List<String> args) => runServer(args);